Window-screen.



H. DA-MM.

WINDOW SCREEN.

APPLICATION FILED SEPT. 6. 1916..

1,235,769. Patented Aug. 7,1917.

WITNESSES 25555;;

ATTORNEY.

.screen of the character stated having means HERMANN DAMM, OF NEW YORK, N. Y.

WINDOW-SCREEN. V

Specification of Letters Eatent.

Patented Aug. 7, 1917.

Application filed September 6, 1916. Serial No. 118,721.

To all whom it may concern.

Be it known that I, HERMANN DAMM, a citizen of Great Britain, residing at New York, in the county of New York and State of New York, have invented certain new and useful Improvements in VVindow- Screens, of which the following is a specification.

This invention relates to window screens, and more particularly to a screen of the roll type.

One of the main objects of the invention is to providea screen having an adjustable frame which can be quickly and easily applied to a window casing of standard construction.

A further object is to provide a screen in which the screen fabric or wire may be raised or lowered as desired.

A still further object is to provide a for holding the wire firmly in the casing so as to effect a tight closure about the same which will effectually prevent the entry of insects into the room about the screen.

Further objects will appear from the detail description.

In the drawings:

Figure l is a front view of the invention as applied,

Fig. 2 is a section on the line 2-2 of Fig. 1,

Fig. 3 is a section on'the line 3-3 of Fig. 1, and

Fig. 4 is a section on the line 44 of Fig. 1.

The numeral 1 designates a window casing of standard construction. On each side plate 2 of the window casing is secured a lower screen frame member 3 and an upper member 4. The lower member 3 is bent to provide the base plate 5, the inwardly projecting bead or tongue 6, and the inwardly directed U-channel 7 The upper member 4 is bent so as to provide a base plate 8, an outwardly directed U-channel 9 which slidably receives the tongue 6, and an inwardly directed U-guide member 10 which is slidably mounted in the U-channel 7 of the lower member 3. By this means the screen members are telescopically connected so as to render the sides of the screen frame slidably adjustable.

A rectangular sheet metal caslng 11 is secured to the upper ends of the upper screen frame member 4 so as to extend across the opening of the window frame at the top thereof. A spring roller 12 is mounted in this casing and a screen member 13 of flexible screen ,wire is wound on this roller. This screen is adapted to be rolled on or off of the roller so as to raise or lower it in the same manner as a window shade. For this purpose, the casing 11 is provided, in its bottom wall, with a longitudinally extending slot which is somewhat longer than the width of the window opening.

. The screen 13 is of such width as to fit between the side screen members 3 and 4 with its edge portions in the inwardly directed channels 7 and U-members 10 of the side frame members. .bers 3 and 4 is provided, at suitable intervals, with a hingedly mounted plate 14. This plate is normally pressed inward by means of a resilient U-spring 15 secured tov the base plate .of the frame bar, and in engagement with the inner end of the plate 14. These plates act to hold the edge portions of the screen pressed tightly against the side bars of the screen frame so as to Each of the frame memeffect a tight closure therewith andprevent 1 the entry of insects about the screen.

cured to the window sill 18 by means of a. flange 19 formed integral therewith. This bar is so positioned that the channel thereof is in alinement with the channel of the lower side frame bars, so that, when the screen is in its lowermost position, the bar 16' will fit snugly within the channel member 17. Mounted within the channel of the member 17 and projecting inwardly thereof are two resilient bow-spr1ngs 20. These springs are adapted to engage into apertures 21 formed in the front wall of the U-bar 16. By this means the screen may be secured in lowered position.

WVhen it is desired to raise the screen, the springs 15 are secured out of engagement with the plates 14. For this purpose, each spring is provided with an eye 22 adapted to be engaged by a hook 23 secured to the window casing through the base plate of its screen frame which is of such length as to hold the spring out of contact with the plate.

- A sheet metalU-bar 16 is firmly clamped when the plates 14: are relieved of pressure,

For convenience in operating the screen,

the bar 16 is provided with a finger-grip 24; secured thereto. By means of this grip, the bar may be readily disengaged from the holding springs 20 so as to release the screen and permit vertical movement thereof.

By my construction, I provide a screen comprising a frame which may be quickly and easily adjusted to suit windows of difi'erent types and a screen element mounted thereon which is easily adjustable to suit circumstances. The frame may be considered as comprising two rectangular members which are telescopically connected. One of these members is composed of the two side bars 4 and the roller casing 11. The other member is composed of the side bars 3 and the channel member 17. These two frames are slidably adjustable relatively and may be quickly and easily adjusted so as to suit windows of various heights or types.

While I have shown my screen as mounted on the outside of a window, it will be obvious that it could be equally well mounted on the inside of the window, without in any way departing from the spirit of the inven tion. WVhen mounted on the outside the sashes can be opened or closed for ventilation without disturbing the screen.

What I claim is:

1. In an adjustable window screen, the combination of two telescopically connected frame sections, a casing carried by one of said sections, a roller mounted in said casing, a screen adapted to be wound on said roller and slidable in both frame sections, and means carried by the frame sections for holding the side edge portions of the screen in tight engagement with the side bars ofsaid frame sections.

2. In an adjustable window screen, the combination of a frame section having side bars bent to form U-channels, a screen frame section having side bars bent to fit into the U-channels of the first of said sections, a casing carried by one of the sections, a roller mounted in the casing, a screen adapted to be wound on the roller and having its side edge portions slidable in the U-members of the side bars of both frame sections, resilient means for holding the side edges of the screen in tight engagement with the side bars of the frame sections,'and means for normally holding the screen in lowered position.

3. The combination of an upper frame section, a lower frame section telescopically connected therewith, a roller carried by the upper section at the upper end thereof, a screen adapted to be wound on the roller and having its side edge portion operable within the side bars of both frame sections, a pinrality of hingedly mounted spring pressed plates carried by the side bars of the frame sections and normally engaging the side edge portions of the screen so as to hold the same in tight engagement with the side bars of the frame sections, a bar secured to the lower end of the screen, a channel member secured at the lower end of the lower frame section and adapted to snugly receive the said screen bar, and means carried by the channel memher and adapted to engage the bar so as to secure the screen in lowered position.

In testimony whereof I affix my signature in presence of two witnesses.

HERMANN DAMM.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. G. 

